/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package CONTROLLER; import javax.servlet.http.HttpSession;

import BUS.*;
import POJO.*;
import UTIL.DateUtil;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;

import javax.servlet.GenericServlet;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 
 * @author wwe
 */
@WebServlet(name = "checkAvalableUsernameController", urlPatterns = { "/checkAvalableUsernameController" })
public class checkAvalableUsernameController extends HttpServlet {

	/**
	 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
	 * methods.
	 * 
	 * @param request
	 *            servlet request
	 * @param response
	 *            servlet response
	 * @throws ServletException
	 *             if a servlet-specific error occurs
	 * @throws IOException
	 *             if an I/O error occurs
	 */

	protected void processRequest(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html;charset=UTF-8");
		request.setCharacterEncoding("UTF-8");
		PrintWriter out = response.getWriter();
		HttpSession session = request.getSession();
		ServletContext app = getServletContext();
		String username = request.getParameter("username");
		String lang = (String) app.getAttribute("MALL_LA");
		try {
			User user = UserBUS.getUser(username, lang);
			user.getAccount();
			out.print("no");
		} catch (Exception ex) {
			out.print("yes");

		} finally {
			out.close();
		}

	}

	// <editor-fold defaultstate="collapsed"
	// desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
	/**
	 * Handles the HTTP <code>GET</code> method.
	 * 
	 * @param request
	 *            servlet request
	 * @param response
	 *            servlet response
	 * @throws ServletException
	 *             if a servlet-specific error occurs
	 * @throws IOException
	 *             if an I/O error occurs
	 */
	@Override
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		processRequest(request, response);
	}

	/**
	 * Handles the HTTP <code>POST</code> method.
	 * 
	 * @param request
	 *            servlet request
	 * @param response
	 *            servlet response
	 * @throws ServletException
	 *             if a servlet-specific error occurs
	 * @throws IOException
	 *             if an I/O error occurs
	 */
	@Override
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		processRequest(request, response);
	}

	/**
	 * Returns a short description of the servlet.
	 * 
	 * @return a String containing servlet description
	 */
	@Override
	public String getServletInfo() {
		return "Short description";
	}// </editor-fold>
}
